… 1, we consider an HARQ assisted cognitive NOMA network, where an SRU and QSU are
paired to perform NOMA. Corresponding to cognitive radio, a remote QSU sensitive to QoS is …

… article, secure transmission schemes based on beamforming optimization are designed to
… Using the transmit beamforming design, we first propose two schemes to protect the privacy …

… design precoding and power allocation matrices to achieve the secrecy capacity region of
two-user Gaussian MIMO-NOMA networks … Then, we design the transmit covariance matrix for …

… securely in the presence of eavesdroppers [12], has not been studied for cooperative NOMA
… an approach to secure the transmissions in a two-user cooperative NOMA, using EST as the …

… Hence, the distance-based users ranking can simplify the design of power allocation and
rate adaption for NOMA technique [29]. Consequently, in this work, the users are ordered …

… 1, we consider the secure transmission using NOMA from a base station (BS) to two legitimate
users in the presence of a multi-antenna eavesdropper (Eve). The BS is equipped with N …

Considering the diversified communication requirements in the Internet-of-Things (IoT) networks,
this article proposes a nonorthogonal multiple access (NOMA) scheme which pairs two …

… (NOMA) is to serve multiple users in the same resource block … resource sharing, a security
flaw of NOMA emerges in the … the reliable and secure transmission of NOMA systems with …

… rate expression, we propose the optimal secrecy beamforming design for total transmission
power minimization problem and minimum secrecy rate maximization problem for the MISO …

… Channel Models: In this article, the secure transmission of NOMA-UAV networks is based on
… designed to extend secure transmission for several users via beamforming. In addition, AJ …